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R25/2

R 25/2
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Production
Begin of the Production 1951
End of the Production 1953
Numbers Produced 38651
Price 1.990,- DM
Engine
Internal Designation 224/3
Motor Type four-stroke single-cylinder vertical
Bore x Stroke 68 x 68 mm
Displacement 247 ccm
Max Power 12 hp at 5800 rpm
Compression Ratio 6.5 : 1
Valves ohv
Carburetion System 1 x Bing type 1/22/44 or SAWE type K 22 F
Engine Lubricating System forced-feed lubrication
Oil Pump gear pump
Power transmission
Clutch single-plate, dry
Number of Gears 4
Shifting foot switching (+ auxiliary manual switch on gearing block)
Gearbox Ratios 6.1 / 3.0 / 2.04 / 1.54
Rear Wheel Ratio 4.5 : 1 (with sidecar 5.14 : 1)
Bevel / Crownwheel 6 / 27 teeth (with sidecar 7:36)
Electrical system
Ignition System battery ignition
Generator Noris ZLZ 45/60; 6 V/max. 60 W
Spark Plugs Bosch W 240 T1
Chassis
Designation 225/2
Frame closed steel twin-loop frame, welded
Front Wheel Suspension telescopic fork
Rear Wheel Suspension pushrod suspension
Wheel Rims 3 x 19 deep-bed
Tyres front 3.25 x 19
Tyres rear 3.25 x 19
Brakes front drum brake Ø 160 mm
Brakes rear drum brake Ø 160 mm
Dimensions / Weights
Length x Width x Height 2020 x 790 x 730 mm (Saddle)
Wheel Base 1335 mm
Fuel Tank Capacity 12 l
Unladen Weight, Full Tank 142 kg
PermittedWeight Limit 300 kg (with original sidecar 375 kg )
Clearance 108 mm
Idle/Riding Noise 84/85 phon
Fuel Consumption approx. 2,9 l/100 km
Oil Consumption approx. 0,7 l/1000 km
Top Speed 105 kph (with original sidecar 80 kph)
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